
DAG3000-112S VoIP Gateway User Manual
4
1.5
Functions and Features
1.5.1
Protocol standard supported
•
SIP V2.0 (RFC 3261,3262,3264)
•
SDP (RFC 2327)
•
REFER (RFC 3515)
•
RTP/RTCP (RFC 1889,1890)
•
STUN (RFC 3489)
•
ARP/RARP (RFC 826/903)
•
SNTP (RFC 2030)
•
TFTP/HTTP/HTTPS
•
DNS/DNS SRV (RFC 1706/RFC 2782)
•
VLAN 802.1P/802.1Q
1.5.2
Voice and Fax parameters
•
G.711A/U law, G.723.1, G.729AB,iLBC,AMR
•
Comfortable Noise Generation (CNG)
•
Voice Activity Detection (VAD)
•
Echo Cancellation (G.168)
•
Adaptive Dynamic Jitter Buffer
•
Voice and fax gain control
•
Modem
•
T.38/Pass-through
•
DTMF Mode: Signal/RFC2833/INBAND
1.5.3
Supplementary service
•
Call waiting
•
Call transfer
(
Blind transfer, Attend transfer,
)